Reuse Of Effluent
Mostrando 13-24 de 76 artigos, teses e dissertações.
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13. Aplicação da técnica de eletrodiálise no tratamento de efluentes de tingimento de gemas contendo íons nitrato e cromo
The dyeing agate employs large quantities of potentially harmful wastewater to the environment, such as, effluent with chromium and nitrate ions. The aim of the present study was investigate the electrodialysis technique efficiency in the removal of contaminant ions present in wastewater generated by the agate dyeing industry and evaluate the toxicity of the
Quím. Nova. Publicado em: 2016-12
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14. CURRENT-VOLTAGE CURVES FOR TREATING EFFLUENT CONTAINING HEDP: DETERMINATION OF THE LIMITING CURRENT
Abstract Membrane separation techniques have been explored for treating industrial effluents to allow water reuse and component recovery. In an electrodialysis system, concentration polarization causes undesirable alterations in the ionic transportation mechanism. The graphic construction of the current voltage curve is proposed for establishing the value of
Braz. J. Chem. Eng.. Publicado em: 2015-12
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15. REUSE OF DAIRY WASTEWATER TREATED BY MEMBRANE BIOREACTOR AND NANOFILTRATION: TECHNICAL AND ECONOMIC FEASIBILITY
Abstract This study evaluated the technical and economic feasibility of membrane bioreactors (MBR) followed by nanofiltration (NF) for dairy wastewater treatment in order to reuse the treated effluent. It was observed that the MBR efficiently removed the organic matter and color of the feed effluent; however, due to the high concentration of dissolved solids
Braz. J. Chem. Eng.. Publicado em: 2015-09
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16. Use of calcined layered double hydroxides for the removal of color and organic matter from textile effluents: kinetic, equilibrium and recycling studies
This paper presents data for the synthesis and characterization of layer double hydroxides (LDH) and their use for color and chemical oxygen demand (COD) removal from effluents generated by a textile industry. Adsorption studies with raw and biologically treated (activated sludge) textile effluent showed that the pseudo-second order model best fitted the exp
Braz. J. Chem. Eng.. Publicado em: 2014-03
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17. Nitrogen removal from swine wastewater by combining treated effluent with raw manure
Effluents from swine raising can be harmful to the environment if not correctly managed. Nitrogen (N) is usually the main element present at high concentrations in the effluent. Since the use as biofertilizer is not always a feasible alternative, the treatment of swine wastewater is necessary. Variations in N species and water solubility make the treatment d
Sci. agric. (Piracicaba, Braz.). Publicado em: 2012-12
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18. Tratamentos dos efluentes gerados na produção de biodiesel
The wastewaters from biodiesel production contain as primarily wastes sodium or potassium soaps, fatty acids, glycerin, alcohol and other contaminants. In general, these waters are chemically unsuitable for release to any water body, so, it is necessary the adoption of techniques for the treatment of this effluent. In this review, electrochemical, biological
Química Nova. Publicado em: 2012
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19. Adsorção de corantes têxteis utilizando biossorventes alternativos
The textile effluents when launched into water bodies reduce the penetration of sun light harming the photosynthesis processes. Besides this, the dyes have been pointed out as potentially toxic substances. In general, the removal processes are based on physicochemical systems followed by biological treatment. The sorption process, besides presenting high rem
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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20. Tratamento e reuso do efluente de biodigestores no processo de biodigestão anaeróbia da cama de frango / Treatment and reuse of efluent of digesters in the anaerobic digestion of poultry litter
The anaerobic digestion process contributes as a method of treating poultry litter and energy generation. However, its applicability may cause some counter-intuitive, requiring for dilution to provide a suitable environment for microorganisms active in the anaerobic process. This dilution increases volume and difficulty of disposal of effluent. Thus, the obj
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/07/2011
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21. AvaliaÃÃo da Piscicultura em Esgoto DomÃstico Tratado: Aspectos ZootÃcnicos, Ambientais e de Qualidade do Pescado Produzido / Evaluation of treated domestic sewage in fish: aspects of husbandry, environmental and quality of fish produced.
The use of wastewater is an alternative widespread nowadays. One way to reuse it in fish activity, considering that the effluent from Sewage Treatment Stations, are rich sources of nutrients that could be used by fish. However, some restrictions arise regarding the quality of animals for use in human diet. Thus, this research was conducted using treated sewa
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/02/2011
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22. Reúso de efluente de esgoto sanitário anaeróbio e nitrificado em irrigação de roseiras / Reuse of anaerobic and nitrified wastewater effluents for irrigation of roses
Wastewater secondary treatment plants effluent may contain, yet, nutrients in amounts harmful to the environment. These effluents discharging can cause eutrophication in receiving waters, making it unsuitable for intended uses, such as provision for human consumption, leisure activities, etc. Besides the problem of eutrophication, there is the difficulty to
Publicado em: 2011
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23. Tratamento de efluente anaeróbio : condicionamento em filtro de areia visando lançamento e reúso / Anaerobic effluent treatment : sand filters conditioning to disposal or reuse applications
Increasing scarcity of freshwater due to demographic growing, urbanization and, climate changing are the reason of increasing use of the wastewater in agriculture. Nowadays, this practice is a reality, mainly in São Paulo in the southeast areas, where the conflicts caused by multiples use of water are constant. Based on this situation, the aiming of this in
Publicado em: 2011
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24. Recovery and reuse of hexavalent chromium from aqueous solutions by a hybrid technique of electrodialysis and ion exchange
The chrome plating industry is one of the highly polluting industries whose effluent mainly consists of chromium(VI). This compound is highly toxic to aquatic life and human health. The rinse water constituents reflect the chrome plating bath characteristics; generally dead tank wash water contains about 1% of the plating bath concentration. Other metals and
Brazilian Journal of Chemical Engineering. Publicado em: 2010-03